试题详情
- 单项选择题Where is the MPLS label imposed？（）
A、after the Layer 3 header and before the Layer 2 payload
B、after the Layer 3 header and before the Layer 4 payload
C、after the Layer 2 header and before the Layer 1 payload
D、after the Layer 1 header and before the Layer 2 payload
E、after the Layer 2 header and before the Layer 3 payload
- E
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